On Thu, Jul 27, 2017 at 9:28 PM, Miklos Szeredi <mik...@szeredi.hu> wrote: > On Thu, Jul 27, 2017 at 8:20 PM, Tahsin Erdogan <tah...@google.com> wrote: >> Hi Miklos, >> I made a first attempt to reproduce the failure but did not get lucky. >> >>> Inode 3093, i_blocks is 16, should be 8. Fix<y>? yes >> Does this inode correspond to foo, bar or a preexisting file?
The inode in question corresponds to the copy-up of bar into upper. There's quite a lot overlayfs does in this apparently simple operation, and that's probably why I've not been able to reproduce without overlayfs (although admittedly I didn't try very hard). It's basically the following: - create tempfile - copy data from lower/bar to work/index/XXX using reflink - copy metadata - set trusted.overlay.origin xattr - set trusted.overlay.nlink xattr - hardlink index file to upper/bar - overwrite trusted.overlay.nlink with different value And ther's also some attr and xattr setting going on for the upper directory. Thanks, Miklos
